Vitamin B12 deficiency causes the body to produce abnormally large blood cells that cannot function properly. Left untreated, complications may occur, such as vision problems, memory loss, and damage to the nervous system. The vitamin is best achieved through diet, but if a person does not eat enough vitamin B12-rich foods, the condition will develop. It is important to notice symptoms to avoid complications and an expert says noting is shortness of breath.

According to a case report from the Harvard affiliate Massachusetts General Hospital, published in The New England Journal of Medicine, the old man who lacked vitamin B12 was gradually disturbed.

Shortness of breath can occur due to the blood's reduced ability to carry oxygen.

But this is not the only symptom to note. The NHS Lists:

A Light Yellow Tinge for the Skin

A tender and red tongue (glossitis)

Stomach ulcer

Pins and needles (paraesthesia)

Changes in the way you go and move around [1

9659006] Disrupted vision

Irritability

Depression

Changes in the way you think, feel and behave

A decrease in your mental abilities, such as memory, understanding and judgment (dementia) [19659015] Another Signs of vitamin B12 deficiency that may occur are blurred vision.

Blurred vision may occur when untreated B12 deficiency causes the nervous system to damage the optical nerve leading to your eyes.

This was a study designation & # 39; B12 deficiency with neurological manifestations in the absence of anemia & # 39;.

The injury can cause chaos on the nerve signal moving from the eye to the brain, and therefore weaken vision.

Optical neuropathy is the medical expression of this condition.

Adults requ Ire 1.5 mg vitamin B12 a day and you should be able to get enough of your diet.

Foods like meat, salmon, cod, milk, cheese, eggs and some enriched breakfast cereals are good sources of vitamin B12.

However, since vitamin B12 is not found naturally in foods such as fruits, vegetables and cereals, vegans may not be able to get enough of it and it may be necessary to take supplements or get injections.

Department of Health advisor if you are taking vitamin B12 supplements, not taking too much, as it can be harmful.

Taking 2mg or less a day of vitamin B12 supplementation is unlikely to cause injury.